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inrun /ˈɪnɹʌn/ n

中文：助滑坡

中文 · 助滑坡Español · lanzamientoFrançais · piste d’élan
Meaning：Part of the ski jump that allows the jumper to generate the speed required for takeoff; its average incline is 35° to 40°.
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Freestyle aerials course Ski jumping technique Ski jumping venue

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